Re: string - string literal
does that work?
string escapeD(string a){
import std.array:replace;
return `r`~a.replace(``,` \ r`)~``;
}
On Sun, Apr 20, 2014 at 11:14 AM, monarch_dodra via Digitalmars-d-learn
digitalmars-d-learn@puremagic.com wrote:
On Sunday, 20 April 2014 at 17:55:25 UTC, Ellery Newcomer wrote:
is there a function in phobos anywhere that takes a string and escapes it
into a string literal suitable for string mixins? something like
assert (f(abc\ndef) == \abc\\ndef\);
It's a bit hackish, but it avoids deploying code and reinventing anything.
You can use format string-range formating to print the string escaped.
Catch that, and then do it again:
string s = abc\ndef;
writefln([%s]\n, s); //raw
s = format(%(%s%), [s]);
writefln([%s]\n, s); //escaped
s = format(%(%s%), [s]);
writefln([%s]\n, s); //escapes are escaped
As you can see from the output, after two iterations:
[abc
def]
[abc\ndef]
[\abc\\ndef\]
I seem to recall that printing strings escaped has been requested
before, but, AFAIK, this is the best we are currently providing.
Unless you call std.format's formatElement directly. However, this is an
internal and undocumented function, and the fact it isn't private is
probably an oversight.
string - string literal
is there a function in phobos anywhere that takes a string and escapes it into a string literal suitable for string mixins? something like assert (f(abc\ndef) == \abc\\ndef\);
Re: string - string literal
On Sunday, 20 April 2014 at 17:55:25 UTC, Ellery Newcomer wrote: is there a function in phobos anywhere that takes a string and escapes it into a string literal suitable for string mixins? something like assert (f(abc\ndef) == \abc\\ndef\); It's a bit hackish, but it avoids deploying code and reinventing anything. You can use format string-range formating to print the string escaped. Catch that, and then do it again: string s = abc\ndef; writefln([%s]\n, s); //raw s = format(%(%s%), [s]); writefln([%s]\n, s); //escaped s = format(%(%s%), [s]); writefln([%s]\n, s); //escapes are escaped As you can see from the output, after two iterations: [abc def] [abc\ndef] [\abc\\ndef\] I seem to recall that printing strings escaped has been requested before, but, AFAIK, this is the best we are currently providing. Unless you call std.format's formatElement directly. However, this is an internal and undocumented function, and the fact it isn't private is probably an oversight.
